Finding the Fourth Proportional to 101,036.24, 139,426.96 and 55,714.20

Step by Step Solution

1. Step 1: Write the proportion equation
   101,036.24 : 139,426.96 = 55,714.20 : x
2. Step 2: Convert to fraction form
   101,036.24/139,426.96 = 55,714.20/x
3. Step 3: Cross multiply
   101,036.24x = 139,426.96 × 55,714.20
4. Step 4: Simplify right side
   101,036.24x = 7,768,061,534.83
5. Step 5: Solve for x
   x = 7,768,061,534.83/101,036.24
6. Step 6: Final answer
   x = 76,883.91